The laptop battery obviously has only a little power, why not charge it after connecting the power supply?

1, the notebook is disabled charging function.

       Some laptop models have a "No Charge" feature in the battery options. Under this function, the adapter powers the notebook directly without charging the battery. In this case, the battery is not charged.

Solution: Turn off the "disable charging" function.

2, the use of non-original charger.

       There are many laptop manufacturers, and the notebooks they produce are quite different in many designs. For example, Dell 1450 notebook "not charged" when the pop-up prompt appears. "Unable to determine the type of AC adapter. Your system will run slower and the battery will not charge. Connect a Dell 90W or higher AC adapter for best system performance." You should first check whether the charger is the original charger and see if the adapter power is correct. If not, you need to replace it with the original charger.

3, laptop battery aging.

       Laptop battery aging is also an important reason, the battery has a long life, after the battery is used to a certain stage, its working status will be abnormal, and periodic problems will appear from time to time. Unplugging the battery and putting it on for a day may restore it as it was or store it in the refrigerator for a day or a period of time, but problems will still occur.